Question
Give the formulae for computing:
- Coefficient of Standard Deviation.
- Coefficient of Variation.
- Variance.
✓
Answer
Formulae for computing:
$\bar{\text{X}}=$ Arithmetic mean
- Coefficient of Standard Deviation $=\frac{\sigma}{\bar{\text{X}}}$
- Coefficient of Variation $=\frac{\sigma}{\bar{\text{X}}}\times100$
- Variance $=\sigma^2,$ where
$\bar{\text{X}}=$ Arithmetic mean
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